philip Mon May 24 17:53:23 2004 EDT
Modified files:
/phpdoc/en/reference/classobj/functions is-a.xml
Log:
Mention (with an example) that is_a() is deprecated in PHP 5 in favor of the
instanceof operator. This deals with bug #27503
http://cvs.php.net/diff.php/phpdoc/en/reference/classobj/functions/is-a.xml?r1=1.6&r2=1.7&ty=u
Index: phpdoc/en/reference/classobj/functions/is-a.xml
diff -u phpdoc/en/reference/classobj/functions/is-a.xml:1.6
phpdoc/en/reference/classobj/functions/is-a.xml:1.7
--- phpdoc/en/reference/classobj/functions/is-a.xml:1.6 Tue Feb 24 11:28:22 2004
+++ phpdoc/en/reference/classobj/functions/is-a.xml Mon May 24 17:53:23 2004
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
<!-- splitted from ./en/functions/classobj.xml, last change in rev 1.33 -->
<refentry id="function.is-a">
<refnamediv>
@@ -42,6 +42,26 @@
]]>
</programlisting>
</example>
+ </para>
+ <para>
+ The <function>is_a</function> function is deprecated as of PHP 5 in
+ favor of the <link linkend="language.operators.type">instanceof</link>
+ type operator. In the above example we could use the following in
+ PHP 5:
+ </para>
+ <para>
+ <example>
+ <title>Using the <emphasis>instanceof</emphasis> operator in PHP 5</title>
+ <programlisting role="php">
+<![CDATA[
+<?php
+if ($WF instanceof WidgetFactory) {
+ echo 'Yes, $WF is a WidgetFactory';
+}
+?>
+]]>
+ </programlisting>
+ </example>
</para>
<simpara>
See also <function>get_class</function>,
